public class Text {
    public static void main(String[] args) {
        BinaryTree binaryTree = new BinaryTree();
        //访问外部非静态成员类型
        BinaryTree.TreeNode root = binaryTree.createBinaryTree();
        //进行前序遍历
        binaryTree.preOrder(root);
        //进行中序遍历
        //进行后序遍历
    }
}
